参数资料
型号: PCA9552PW,118
厂商: NXP Semiconductors
文件页数: 17/28页
文件大小: 0K
描述: IC LED DRIVER BLINKER 24-TSSOP
标准包装: 2,500
拓扑: 开路漏极,PWM
输出数: 16
内部驱动器:
类型 - 主要: LED 闪烁器
频率: 400kHz
电源电压: 2.3 V ~ 5.5 V
安装类型: 表面贴装
封装/外壳: 24-TSSOP(0.173",4.40mm 宽)
供应商设备封装: 24-TSSOP
包装: 带卷 (TR)
工作温度: -40°C ~ 85°C
其它名称: 935272394118
PCA9552PW-T
PCA9552PW-T-ND
Philips Semiconductors
PCA9552
16-bit I 2 C-bus LED driver with programmable blink rates
11. Dynamic characteristics
Table 14:
Dynamic characteristics
Symbol
Parameter
Conditions
Standard mode
Fast mode I 2 C-bus
Unit
I 2 C-bus
Min
Max
Min
Max
f SCL
t BUF
SCL clock frequency
bus free time between a STOP and
0
4.7
100
-
0
1.3
400
-
kHz
μ s
START condition
t HD;STA
t SU;STA
hold time (repeated) START condition
set-up time for a repeated START
4.0
4.7
-
-
0.6
0.6
-
-
μ s
μ s
condition
t SU;STO
t HD;DAT
set-up time for STOP condition
data hold time
4.0
0
-
-
0.6
0
-
-
μ s
ns
t VD;ACK
data valid acknowledge time
[1]
-
600
-
600
ns
t VD;DAT
t SU;DAT
t LOW
t HIGH
t f
t r
t SP
data valid time
data set-up time
LOW period of the SCL clock
HIGH period of the SCL clock
fall time of both SDA and SCL signals
rise time of both SDA and SCL signals
pulse width of spikes that must be
LOW-level
HIGH-level
[2]
[2]
-
-
250
4.7
4.0
-
-
-
600
1500
-
-
-
300
1000
50
-
-
100
1.3
0.6
20 + 0.1C b
20 + 0.1C b
-
[3]
[3]
600
600
-
-
-
300
300
50
ns
ns
ns
μ s
μ s
ns
ns
ns
suppressed by the input ?lter
Port timing
t v(Q)
t su(D)
t h(D)
data output valid time
data input setup time
data input hold time
-
100
1
250
-
-
-
100
1
250
-
-
ns
ns
μ s
Reset
t w(rst)
t rec(rst)
reset pulse width
reset recovery time
10
0
-
-
10
0
-
-
ns
ns
t rst
reset time
[4] [5]
400
-
400
-
ns
[1]
[2]
[3]
[4]
[5]
t VD;ACK = time for Acknowledgement signal from SCL LOW to SDA (out) LOW.
t VD;DAT = minimum time for SDA data out to be valid following SCL LOW.
C b = total capacitance of one bus line in pF.
Resetting the device while actively communicating on the bus may cause glitches or errant STOP conditions.
Upon reset, the full delay will be the sum of t rst and the RC time constant of the SDA bus.
PCA9552_5
? Koninklijke Philips Electronics N.V. 2006. All rights reserved.
Product data sheet
Rev. 05 — 9 March 2006
17 of 28
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